rachel swansboro ran about mrs. o'connor called american tapestry. jodi cantor wrote the eponymous and david marinus first half of his biography of president obama, barack obama the story came out as well. >> guest: yes, whenever there is a sitting president it is a print for publishers who can jump on a bandwagon in publishes many books as possible. in the interesting because it helped them them to be shouted to a student in a year to his early organizing days and really did a thorough job in terms of talk with a full plethora of people in his early life. jodi cantor did a lot of recording an investigation with your book about the marriage between barack and michelle obama and rachel swarms took a larger view, looking at the first lady and her lurcher ancestry in putting together a lurcher story is the result. >> host: bob, go ahead, please. >> guest: i was going to jump in. of those three may paper with marinus. in my review i read of this exhaustive and exhausting. he goes into every detail and his and his obama is going off to harvard or is just